FiveThirtyEight.com, an analytics website that's part of ESPN, created a projection system to predict how good each NBA player will be by comparing them to the career arcs of other similar players (pictured above for Kelly Olynyk).

Below is a list of the notable player comparisons FiveThirtyEight made for every Celtic, as well as link to the analysis of each. Considering Boston could run out a lineup reminiscent of Sam Cassell, James Harden, Rick Fox, Dennis Rodman and Robert Parish, 48 wins may be a bit low...

Obviously this can't be taken too seriously. According the FiveThirtyEight, Marcus, Isaiah, Amir, Kelly and Jae could just as easily become Vladimir Radmanovic, Mo Williams, Cliff Levingston, Rick Robey and Jud Buechler.